Ore granulator and pulverizer.



No. 665,339. Patented Ian. I, 190:.

.1. M. muumomznv.

ORE GRANULATOB AND PULVERIZE'B.

(Application filed Aug. 8, 1899.) (No Model.) v 4 Sheets-Sheet I GUZOLMBHI) m: NORms wsrzns co. PNEl'O-LITHEL WASHINGTON, n. c.

No. 665,339. Patented Ian. I, IQOI. J. M. MONTGOMERY. ORE GRANULATOB AND P ULVERIZER.

ion filed Aug. 5. 1899.)

(Applicajz '4 Sheets-$heet 2.

(No Model.)

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No. 665,339. Patented Jan. I, l90l.

J. M. MONTGOMERY.

ORE GBANU'LATOB AND PULVERIZER.

(Application filed Aug. 8. 1899.) Mildew 4 Sheets-Sheet 3 l/Viviana:

No. 665,339. Patented Jan. new; .1. M. monmomenv. ORE GR'ANULATORAND PULVERIZEB.

(Application filed Aug. 8, 1899.) (No Model.) .4 Sheets-Sheet 4;

m E J r N d a H I N L0 1 N p O O UNITED STATES PATENT OFFICE.

JOHN MILTON MONTGOMERY, OF BUTTE, MONTANA, ASSIGNOR OF ONE- I-IALF TO JOHN T. BALDWIN, EDWARD W. CLARK, AND S. ROBERT FAIR, OF SAME PLACE, AND EDWIN M. CLARK, OF WEST SUPERIOR,

WISCONSIN.

ORE GRANULATOR AND PU LV ERIZER.

SPECIFICATION forming part of Letters Patent No. 665,339, dated January 1. 1901.

Application filed August 8, 1899.

To all whozn it may concern:

Be it known that 1, JOHN MILTON MONT- GOMERY, acitizen of the United States, residing at Butte, in the county of Silver Bow and State of Montana, have invented certain new and useful Improvements in Ore Granulators and Pulverizers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has relation to certain novel improvements in ore granulators and pulverizers, and is designed more particularly as an improvement on a similar device for which Letters Patent of the United States No. 608,700 were granted to me on the 9th day of August,- A. D. 1898.

The objects of the invention are to improve the constructionand increase the efliciency and durability of the device therein set forth.

To these ends the invention consists in the construction, combination, and arrangement of the several elements of the machine, as will be hereinafter more fully described, and particularly pointed out in the claims.

In the accompanying drawings the same reference characters indicate the same parts of the invention.

Figure 1 is a transverse section, partly in elevation, of an ore granulator and pulverizer. Fig. 2 is a top plan view of the same. Figs. 3 and 4 are detail views of one of the crushing-spheres. Fig. 5 is a similar view of the bed-rings, and Fig. 6 is a vertical transverse section of the same machine as it appears when driven by an overhead gearing.

1 denotes the annular casing, provided with the annular flaring flange 2, to which the sheet-metal trough 3 is secured, and 4 denotes a superimposed concentric flange to which the sheet metal splash ring 5 is secured. This flange 4 is supported by the brackets 4:, and 5 denotes an annular screen fixed to said brackets.

6 designates the central tubular standard, which forms the bearing for the vertical driving-shaft 7, the lower end of which is seated in the step-bearing 8, and this shaft 7 is driven by the inverted bevel-gear 9, which meshes Serial No. 726,580. (No model.)

with the smaller bevel-gear 10, fixed on the horizontal counter-shaft 11, mounted in the bearing-boxes 12 12 and provided with the usual tight and loose pulleys 13 14:.

15, 16, and 17 denote the separable and removable bed-rings, upon which the crushingspheres 18 18 travel.

19 denotes a casting or head fixed to the upper end of the vertical driving-shaft 7, and 20 designates the annular feed-hopper. The head 19 is formed with a horizontal flange 21, provided with three equidistant lugs 22, to which the diagonal bearing-boxes 23 are adjustably secured by the bolts 24, and in each of these boxes is mounted a shaft 25, which is provided with collars 26 26 to hold it in position, and its lower end carries a pushingwheel 27, which bears against and pushes the crushing-spheres 18 around on the annular bedrings. The bearing-boxes 23 are made adjustable to compensate for the Wear of the spheres or removable bed-rings, or both, so that the pushing-wheels may be lowered to bring their point of contact with said spheres at the horizontal axis of said spheres, thus securing better results than if the pushingwheels engaged said spheres at a point above their horizontal axis. The pushing-wheel 27 is mounted on a diagonally-divided and externally-tapering hub 29 29, fixed to the shaft and adjustably secured to the wheel by the transverse bolts 30 30.

31 31 denote standards fixed to the headflange 21, which support an annular oil-ring 32, from which the oil-pipes 33 lead to the bearings 23 to oil the shafts 25, and the oilring 32 is provided with a removable cover 34, provided with oil-cups 35 for supplying the ring 32 with oil.

In Fig. 1 I have shown a hollow conical box 36, mounted on the head 19, and from it tubes 37 lead to the bearings 23, and 37' denotes a water-tank having an outlet-tube 38 extending into the box 36 to supply it with water, when such is used for lubricating, instead of oil from the oil-ring 32, as Iprefer to use water in the pushing-wheel boxes in crushing gold or amalgamating ores, as the oil retards the process of amalgamation. I have found in practice that when oil or other greasy lubricant is used a portion will necessarily work through the bearing, and consequently mix with the granulated ore, which when removed from the mill to the amalgamator will retard the process of amalgamation. For this reason I prefer to use water a lubricant, which obviates this objectionable feature.

The crushing-spheres 18 are formed of a number of segmental counterpart sections 28 and the cap-sections 28 These sections are each provided with internal radial arms 28 terminating in T-shaped cross-heads 28 and when the sections are assembled, with the exception of one of the cap-sections, the interior of the sphere is filled with molten lead and the top cap-section replaced and the whole allowed to cool.

In Fig. 6 the boxing 36 is removed and the shaft 7 extends upwardly through the hopper 20 and has a bearing in the vertical journalbox 20, formed integral with the supportingframe, and its upper end carries an inverted bevel-gear 9, which meshes with a smaller bevel-gear 10 on the counter-shaft 11.

The operation of the machine is substantially identical with that described in my prior patent, hereinbefore referred to, and consequently need not be repeated.

Particular attention is called to the annular feed-hopper 20, which rotating with the main shaft 7 acts as a gravitating feed-hopper, so arranged as to distribute the material equally to each crushing device, which construction overcomes the objection common to that class of mills fed in the side in one place, which has a tendency to wear holes in the dies at the point where the feed enters the mill, which causes the spheres or disks to pound at this point so as to endanger the foundation. By the use of my annular ring-hopper with spouts leading therefrom the material is distributed by gravity and fed before each sphere or disk, thus effectually overcoming the above difficulty. Attention is also called to the overhead drive mechanism, the annular ring-hopper being so constructed as to permit the main driving-shaft to extend through the hopper to connect with the overhead drive mechanism, as shown in Fig. 6.

It will of course be understood that various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principles or sacrificing any of the advantages of this invention.

Having thus fully described the invention, what is claimed, and desired to be secured by Letters Patent, is

1. In an ore grannlator and pulverizer, the combination with an annular casing, of a rotatable head provided with lugs, diagonallydisposed bearing-boxes adjustably secured to said lugs, pusher-Wheels journaled in said boxes, and spheres located in said casing and adapted to be engaged by the pusher-wheels and by them chased around the casing, substantially as set forth.

2. Acrushing-sphere for ore granulators or pnlverizers formed of a number of segmental counterpart sections and cap-sections formed with in wardly-projecting T-heads said sphere being filled with a binder which upon hardening securely holds the parts together, substantially as set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

Witnesses:

W. S. COBBAN, W. D. RUMsEY. 

